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Hearing Health

How Hearing Loss Is Connected to Your Whole Health

5 min read
An older couple in conversation at Sounds of Life Hearing Center in Painesville, Ohio

When most people think about hearing loss, they think about turning up the TV or asking people to repeat themselves.

But hearing is about much more than volume. Your ears collect sound, but your brain has to make sense of it. Hearing also helps you stay connected to conversations, people, and the world around you.

That’s why we don’t look at hearing as something separate from the rest of your health.

Hearing Loss Can Make Listening Hard Work

Have you ever left a noisy restaurant feeling exhausted from trying to follow the conversation?

That’s listening effort.

When speech becomes harder to hear clearly, your brain has to work harder to figure out what was said. You may still understand the conversation, but doing so can take more attention and energy.

For some people, that extra work can make meetings, family gatherings, restaurants, and other busy places surprisingly tiring.

Your Brain Can Adapt to Changes in Hearing

The brain is constantly changing based on the information it receives.

Research has found that even adults with mild-to-moderate hearing loss can show changes in how the brain processes information. When the brain receives less clear sound, areas normally involved in hearing may begin responding differently or helping with information from other senses.

Here’s the encouraging part: early research suggests that some of these changes may shift back toward more typical patterns after hearing loss is treated with well-fit hearing aids.

We’re still learning exactly what these changes mean for long-term brain health. But they remind us that hearing isn’t something that happens only in your ears.

What About Hearing Loss and Dementia?

You’ve probably seen headlines saying that hearing loss causes dementia or that hearing aids can prevent it.

The science isn’t that simple.

Large studies have found that hearing loss is associated with a higher risk of cognitive decline and dementia. Because hearing loss can be treated, experts consider it an important potentially modifiable risk factor for dementia.

But an association does not prove that hearing loss directly causes dementia.

Researchers are studying several possible connections. Hearing loss may increase the effort needed to understand speech, change how the brain processes sound, or make it easier to become socially isolated. Hearing loss and cognitive decline may also share some of the same health and aging-related causes.

Can treating hearing loss protect your brain?

We don’t know for certain yet.

The large ACHIEVE clinical trial studied adults ages 70–84 with untreated hearing loss. When researchers looked at everyone in the study together, hearing treatment did not significantly slow cognitive decline over three years.

But researchers found something important when they looked at a group of participants who were at higher risk for cognitive decline. In that group, people who received hearing treatment had about 48% less cognitive decline over three years than those who did not receive the hearing intervention.

That’s promising, but it doesn’t mean hearing aids prevent dementia. It tells us there is good reason to keep studying whether treating hearing loss may protect brain health for some people.

Hearing Loss Is Also Linked to Falls

Studies have consistently found that people with hearing loss are more likely to experience falls.

We don’t yet know exactly why.

Hearing gives you information about what’s happening around you. Hearing and balance problems can sometimes occur together. And paying close attention to difficult listening may use mental resources that are also needed for safely moving through your environment.

These are possible explanations—not proof that hearing loss itself causes falls.

Still, especially for older adults or people already at risk of falling, hearing is an important part of the bigger health picture.

Hearing Can Affect How Connected You Feel

Imagine sitting at a family dinner but missing half of the conversation. Or turning down an invitation because you know the restaurant will be too noisy to follow what anyone says.

Over time, those experiences can add up.

Hearing loss has been linked with loneliness, social isolation, depression, and anxiety. That doesn’t mean hearing loss will cause these problems for everyone. But communication is an important part of staying connected to other people.

Helping someone hear better isn’t just about making sounds louder. It’s about making communication easier and helping people stay involved in the parts of life that matter to them.

The Good News: Hearing Loss Can Be Treated

If you have hearing loss, there are more treatment options than ever before.

And treatment doesn’t automatically mean hearing aids.

The first step is understanding why you’re having difficulty. Earwax, middle-ear problems, hearing loss, tinnitus, and other hearing or auditory problems can cause very different symptoms—and they don’t all need the same treatment.

If hearing aids are appropriate, the devices themselves are only one part of successful treatment. How they are selected, fit, programmed, verified, and adjusted by your audiologist can make a major difference in how well they work for you.

The goal isn’t simply to hear more sound. It’s to help you hear and communicate as well as possible in your real life.

When Should You Get Your Hearing Checked?

It’s a good idea to have your hearing checked if:

  • You regularly ask people to repeat themselves.
  • You hear people talking but don’t always understand the words.
  • Restaurants and group conversations have become harder.
  • You turn the TV or phone louder than other people prefer.
  • You notice ringing, buzzing, or other sounds in your ears.
  • You have a history of significant noise exposure.
  • You simply feel that your hearing has changed.

Current clinical guidelines also recommend hearing screening beginning at age 50, even if you haven’t noticed a problem.

Frequently Asked Questions

Is it worth treating mild hearing loss?

It can be. The degree of hearing loss on a hearing test is only part of the picture. We also consider how clearly you understand speech, where you’re having difficulty, how much effort listening takes, and how hearing is affecting your daily life. Research has also found changes in brain activity even in some adults with mild-to-moderate hearing loss. That doesn’t mean everyone with mild hearing loss needs hearing aids. It does mean that “mild” on a hearing test doesn’t always mean “not important.”

Can hearing aids prevent dementia?

We don’t have evidence to say that hearing aids prevent dementia. Research clearly shows a connection between hearing loss and cognitive health, and some studies suggest that treating hearing loss may help slow cognitive decline in certain people. But that’s different from saying hearing aids prevent Alzheimer’s disease or dementia. There are already plenty of good reasons to treat hearing loss when it’s affecting your life: easier communication, less listening effort, better access to the people and sounds around you, and improved quality of life. If treatment also proves to have long-term benefits for brain health, that’s an important added benefit we’re continuing to study.

Sources & Further Reading

We believe hearing-health information should be based on good science. If you’d like to learn more, these are some of the studies and clinical guidelines behind this article.

Hearing Loss & Brain Health

The Lancet Commission has identified hearing loss as an important potentially modifiable risk factor associated with dementia. Researchers continue to study why hearing and cognitive health are connected.

Livingston G, et al. Dementia prevention, intervention, and care: 2024 report of the Lancet standing Commission. The Lancet. 2024.

Hearing Treatment & Cognitive Decline — The ACHIEVE Study

This large randomized clinical trial studied whether treating hearing loss could slow cognitive decline in older adults. There was no significant benefit when all participants were considered together, but a higher-risk group experienced substantially less cognitive decline with hearing treatment.

Lin FR, et al. Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss (ACHIEVE). The Lancet. 2023.

How the Brain Adapts to Hearing Loss

Research from Dr. Anu Sharma and colleagues has found changes in how the brain processes information in adults with mild-to-moderate hearing loss. A small study also found that some of these changes shifted after six months of hearing-aid use.

Glick HA, Sharma A. Cortical neuroplasticity and cognitive function in early-stage, mild-moderate hearing loss. Frontiers in Neuroscience. 2020.

Hearing Loss & Falls

A large systematic review found that hearing loss is associated with a greater risk of falls, even after researchers accounted for other factors such as vision and balance problems. This research shows an association; it does not prove that hearing loss directly causes falls.

Yeo BSY, et al. Hearing Loss and Falls: A Systematic Review and Meta-Analysis. JAMA Otolaryngology–Head & Neck Surgery. 2025.

Hearing Loss, Loneliness & Emotional Health

Research has linked hearing loss with loneliness, social isolation, depression, and psychological distress. Scientists are continuing to study how hearing, communication, and social connection influence one another.

Cormier K, et al. Hearing loss and psychosocial outcomes: Influences of social emotional aspects and personality. PLOS ONE. 2024.

When Adults Should Have Their Hearing Checked

The American Academy of Otolaryngology–Head and Neck Surgery recommends hearing screening beginning at age 50 and provides evidence-based guidance for evaluating and managing age-related hearing loss.

Tsai Do BS, et al. Clinical Practice Guideline: Age-Related Hearing Loss. Otolaryngology–Head and Neck Surgery. 2024.

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